The son of actor Jackie Chan apologised to the public at a news conference on Saturday following his release from a six-month jail sentence for allowing people to use marijuana in his flat.

Jaycee Chan, 32, told reporters that he will "treasure" any second chance he is given in regards to his acting career and promised to "behave" himself.He said he had "no reason and no excuse" for the behaviour, which led to his arrest in August, alongside Taiwanese actor Ko Kai and others.

"I have corrected my outlook on life and my values," Chan said.Chan and Ko tested positive for marijuana, and police seized more than 100 grammes (3.5 ounces) of the drug from his Beijing flat.

He could have been sentenced to up to three years, but was shown leniency by the court for admitting the offence.

Chan, whose mother is former Taiwanese actress Lin Feng-jiao, was raised in Los Angeles and has appeared in about 20 films, most of them low-budget Hong Kong and mainland Chinese productions.

Jackie Chan has publicly apologised for his son's drug use and pledged to work with him on his recovery.The incident was particularly sensitive for him as he is an anti-drugs ambassador in China and a deputy to the national legislature's main consultative body.

Chan's arrest has put his entertainment career in jeopardy, with several Chinese management companies saying they would refuse to employ celebrities caught using drugs."As for my acting career, I don't know if I will have the chance (to pursue it) because I don't have the right to tell you," Chan said.

Chan said he was now focusing on spending time with his parents over next week's Lunar New Year holiday.